Very interesting!
In the early days of Ramshot Powders, on of the thing they did to entertain gun writers during their annual prairie dog hunt was to shoot their bowling-ball mortar. I was there the first time they tried it--and the ball disappeared into the "Big Sky" of Montana. It eventually landed about 300 yards away, but there was some concern until then, partly because the Western Powders property was very close to the Miles City airport.
